rs137852774

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM2PM5PP3_ModeratePP5

The NM_000182.5(HADHA):​c.914T>C​(p.Ile305Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000011 in 1,448,052 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I305N) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

HADHA
NM_000182.5 missense

Scores

9
8
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:3U:2

Conservation

PhyloP100: 8.46

Publications

7 publications found
Variant links:
Genes affected
HADHA (HGNC:4801): (hydroxyacyl-CoA dehydrogenase trifunctional multienzyme complex subunit alpha) This gene encodes the alpha subunit of the mitochondrial trifunctional protein, which catalyzes the last three steps of mitochondrial beta-oxidation of long chain fatty acids. The mitochondrial membrane-bound heterocomplex is composed of four alpha and four beta subunits, with the alpha subunit catalyzing the 3-hydroxyacyl-CoA dehydrogenase and enoyl-CoA hydratase activities. Mutations in this gene result in trifunctional protein deficiency or LCHAD deficiency. The genes of the alpha and beta subunits of the mitochondrial trifunctional protein are located adjacent to each other in the human genome in a head-to-head orientation. [provided by RefSeq, Jul 2008]
HADHA Gene-Disease associations (from GenCC):
  • long chain 3-hydroxyacyl-CoA dehydrogenase deficiency
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Labcorp Genetics (formerly Invitae), ClinGen
  • mitochondrial trifunctional protein deficiency
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr2-26214447-A-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 8736.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.93
PP5
Variant 2-26214447-A-G is Pathogenic according to our data. Variant chr2-26214447-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 453019.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000182.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HADHA
NM_000182.5
MANE Select
c.914T>Cp.Ile305Thr
missense
Exon 9 of 20NP_000173.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HADHA
ENST00000380649.8
TSL:1 MANE Select
c.914T>Cp.Ile305Thr
missense
Exon 9 of 20ENSP00000370023.3P40939-1
HADHA
ENST00000942149.1
c.914T>Cp.Ile305Thr
missense
Exon 9 of 21ENSP00000612208.1
HADHA
ENST00000942146.1
c.929T>Cp.Ile310Thr
missense
Exon 9 of 20ENSP00000612205.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152222
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251006
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000108
AC:
14
AN:
1295830
Hom.:
0
Cov.:
20
AF XY:
0.00000918
AC XY:
6
AN XY:
653692
show subpopulations
African (AFR)
AF:
0.0000330
AC:
1
AN:
30300
American (AMR)
AF:
0.00
AC:
0
AN:
44508
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25120
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38934
South Asian (SAS)
AF:
0.00
AC:
0
AN:
82758
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53364
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3858
European-Non Finnish (NFE)
AF:
0.0000114
AC:
11
AN:
962332
Other (OTH)
AF:
0.0000366
AC:
2
AN:
54656
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.514
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152222
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74380
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41468
American (AMR)
AF:
0.0000654
AC:
1
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5204
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.0296732), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.400
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Long chain 3-hydroxyacyl-CoA dehydrogenase deficiency (1)
1
-
-
Mitochondrial trifunctional protein deficiency 1 (1)
1
-
-
Mitochondrial trifunctional protein deficiency;C3711645:Long chain 3-hydroxyacyl-CoA dehydrogenase deficiency (1)
1
-
-
not provided (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.40
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.33
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.70
D
Eigen
Pathogenic
0.89
Eigen_PC
Pathogenic
0.84
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.81
T
M_CAP
Uncertain
0.11
D
MetaRNN
Pathogenic
0.93
D
MetaSVM
Uncertain
0.39
D
MutationAssessor
Pathogenic
4.3
H
PhyloP100
8.5
PrimateAI
Pathogenic
0.83
D
PROVEAN
Uncertain
-3.6
D
REVEL
Pathogenic
0.89
Sift
Uncertain
0.0050
D
Sift4G
Uncertain
0.0060
D
Polyphen
0.96
D
Vest4
0.95
MutPred
0.77
Loss of stability (P = 4e-04)
MVP
0.86
MPC
0.85
ClinPred
0.99
D
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.55
gMVP
0.76
Mutation Taster
=25/75
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs137852774; hg19: chr2-26437316; API